/*移动端:active伪类无效的解决方法*/
document.body.addEventListener('touchstart', function () {
	//...空函数即可
})

/*iOS 10中禁止用户缩放页面*/
window.onload=function () {
    document.addEventListener('touchstart',function (event) {
        if(event.touches.length>1){
            event.preventDefault()
        }
    })
    var lastTouchEnd=0
    document.addEventListener('touchend',function (event) {
        var now=(new Date()).getTime()
        if(now-lastTouchEnd<=300){
            event.preventDefault()
        }
        lastTouchEnd=now
    },false)
}